http://www.imore.com/sites/imore.com...?itok=4VWpw5IT
Using Siri with HomeKit accessories is magical —*while it's working. If your HomeKit accessories blink out, here's the fix.
I spent most of a glorious Tuesday testing Lutron's Caseta Wireless lighting system, one of Apple's first HomeKit-enabled accessories to make it to market. I had altogether too much fun telling Siri to "turn off the Space Shuttle" (basement) or "turn on the lights in the Pittie Palace" (living room full of dogs). But then, disaster struck: After disabling my house's power that evening to install a thermostat, I found myself prompted with the worst alert — the one that told me Siri wasn't connecting to HomeKit. After a bunch of panicked troubleshooting steps that mostly boiled down to "turn the HomeKit router on and off again", I finally considered that it might be a bug on the iOS side. Ding ding ding!
So to save you all the trouble of repeating my evening of hair-mangling, here are a few good troubleshooting tips for getting a cranky HomeKit system to work.